document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=375671>Question 375671</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve using the multiplication principle first. Then use the elimination method.<BR>\n" );
document.write( "2x+y=13   4x + 2y = 23  <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #267164 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=267164\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x+y=13 <BR>\n" );
document.write( "4x + 2y = 23  <BR>\n" );
document.write( "...<BR>\n" );
document.write( "multiply first equation by -2<BR>\n" );
document.write( "we have<BR>\n" );
document.write( "-4x-2y=-26<BR>\n" );
document.write( "add this to the second equation<BR>\n" );
document.write( "4x-4x+2y-2y = 23-26<BR>\n" );
document.write( "0 = -3<BR>\n" );
document.write( "...<BR>\n" );
document.write( "there is no solution to this system. The lines are parallel.<BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-20%2C20%2C-5%2C5%2C%28-2x%2B13%29%2C%28-2x-%2823%2F2%29%29%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-20%2C20%2C-5%2C5%2C%28-2x%2B13%29%2C%28-2x-%2823%2F2%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "m.ananth@hotmail.ca </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );